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Simplifying
(12 + 5x)(12 + -5x) = 0
Multiply (12 + 5x) * (12 + -5x)
(12(12 + -5x) + 5x * (12 + -5x)) = 0
((12 * 12 + -5x * 12) + 5x * (12 + -5x)) = 0
((144 + -60x) + 5x * (12 + -5x)) = 0
(144 + -60x + (12 * 5x + -5x * 5x)) = 0
(144 + -60x + (60x + -25x2)) = 0
Combine like terms: -60x + 60x = 0
(144 + 0 + -25x2) = 0
(144 + -25x2) = 0
Solving
144 + -25x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-144' to each side of the equation.
144 + -144 + -25x2 = 0 + -144
Combine like terms: 144 + -144 = 0
0 + -25x2 = 0 + -144
-25x2 = 0 + -144
Combine like terms: 0 + -144 = -144
-25x2 = -144
Divide each side by '-25'.
x2 = 5.76
Simplifying
x2 = 5.76
Take the square root of each side:
x = {-2.4, 2.4}
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